/**
* ClassName: BusinessInfo
* Package: src/views
* Description: 商家信息页面
*
* @Author Liu Wenrui
* @Create 2025/9/24 16:00
* @Version 1.1
*
* @Author Liu Wenrui
* @Create 2025/9/25 17:45
* @Version 1.2
*/

<template>
    <div class="wrapper">
        <!-- header部分 -->
        <header>
            <span class="back-btn" @click="goBack">&#8592;</span>
            <p>商家信息</p>

            <div class="header-actions">
                <button class="header-action-btn" @click="openComments" title="查看评价">
                    <i class="fa fa-comments"></i>
                </button>
            </div>
        </header>
        <!-- 商家logo部分 -->
        <div class="business-logo">
            <img :src="getImg(business.businessImg)">
        </div>
        <!-- 商家信息部分 -->
        <div class="business-info">
            <h1>{{ business.businessName }}</h1>
            <p>&#165;{{ business.startPrice }}起送 &#165;{{ business.deliveryPrice }}配送</p>
            <p>{{ business.businessExplain }}</p>
        </div>
        <div class="fab-comment" @click="goFeedback" title="写评论">
            <i class="fa fa-edit"></i>
        </div>

        <div v-if="showCommentModal" class="modal-mask" @click.self="closeCommentModal">
            <div class="modal-panel">
                <div class="modal-header">
                    <div class="tabs">
                        <button :class="{ active: activeTab === 'comment' }" @click="switchTab('comment')">评价</button>
                        <button :class="{ active: activeTab === 'complain' }" @click="switchTab('complain')">投诉</button>
                    </div>
                    <button class="modal-close" @click="closeCommentModal">×</button>
                </div>
                <div class="modal-body">
                    <!-- 订单选择（按当前页签过滤：评价→未评价；投诉→未投诉） -->
                    <div class="order-select">
                        <label>选择订单</label>
                        <select v-model="selectedOrderId">
                            <option :value="null" disabled>请选择订单</option>
                            <option v-for="o in orderOptions" :key="o.id" :value="o.id">订单 #{{ o.id }}</option>
                        </select>
                        <p v-if="orderLoading">正在加载订单...</p>
                        <p v-else-if="!orderOptions.length" class="hint">
                            {{ activeTab === 'comment' ? '暂无可评价的订单' : '暂无可投诉的订单' }}
                        </p>
                    </div>

                    <template v-if="activeTab === 'comment'">
                        <div class="stars">
                            <span v-for="n in 5" :key="n" class="star" :class="{ on: rating >= n }"
                                @click="rating = n">★</span>
                            <span class="score">{{ rating }}/5</span>
                        </div>
                        <textarea v-model.trim="content" rows="4" placeholder="分享一下本店体验吧~"></textarea>
                        <button class="btn-primary" :disabled="submitting || !rating || !content || !selectedOrderId"
                            @click="submitComment">
                            {{ submitting ? '提交中...' : '提交评价' }}
                        </button>
                    </template>

                    <!-- 投诉表单 -->
                    <template v-else>
                        <textarea v-model.trim="complaintContent" rows="4" placeholder="请描述要投诉的问题…"></textarea>
                        <button class="btn-primary"
                            :disabled="complaintSubmitting || !complaintContent || !selectedOrderId"
                            @click="submitComplaint">
                            {{ complaintSubmitting ? '提交中...' : '提交投诉' }}
                        </button>
                    </template>
                </div>
            </div>
        </div>

        <div v-if="showCommentsModal" class="modal-mask" @click.self="closeComments">
            <div class="modal-panel">
                <div class="modal-header">
                    <span>商家评价</span>
                    <button class="modal-close" @click="closeComments">×</button>
                </div>
                <div class="modal-body">
                    <p v-if="commentsLoading">正在加载...</p>
                    <p v-else-if="!comments.length" class="hint">暂无评价</p>
                    <ul v-else class="comment-list">
                        <li v-for="c in comments" :key="c.id">
                            <div class="cl-head">
                                <span class="name">{{ c.customerName || c.userName || '匿名' }}</span>
                                <span class="stars-mini">
                                    <span v-for="n in 5" :key="n" class="star"
                                        :class="{ on: (c.rating || 0) >= n }">★</span>
                                </span>
                                <span class="time">{{ formatTime(c.createTime || c.createdAt) }}</span>
                            </div>
                            <p class="cl-content">{{ c.content }}</p>
                        </li>
                    </ul>
                </div>
            </div>
        </div>
        <!-- 食品列表部分 -->
        <ul class="food">
            <li v-for="(item, index) in foodArr" :key="item.id || index">
                <div class="food-left">
                    <!-- 所有食品都显示图片 -->
                    <img :src="getImg(item.foodImg)">
                    <div class="food-left-info">
                        <h3>{{ item.foodName }}</h3>
                        <p>{{ item.foodExplain }}</p>
                        <p>&#165;{{ item.foodPrice }}</p>
                        <!-- 下架提示 -->
                        <p v-if="!item.onSale" style="color:#dc3545;font-weight:bold;">已下架</p>
                    </div>
                </div>
                <!-- 只有上架食品显示加购按钮 -->
                <div class="food-right" v-if="item.onSale">
                    <i class="fa fa-minus-circle" @click="minus(index)" v-show="item.quantity != 0"></i>
                    <span class="food-quantity" v-show="item.quantity != 0">{{ item.quantity }}</span>
                    <i class="fa fa-plus-circle" @click="add(index)"></i>
                </div>
            </li>
        </ul>
        <!-- 购物车部分 -->
        <div class="cart">
            <div class="cart-left">
                <div class="cart-left-icon"
                    :style="totalQuantity == 0 ? 'background-color:#505051;' : 'background-color:#3190E8;'">
                    <i class="fa fa-shopping-cart"></i>
                    <div class="cart-left-icon-quantity" v-show="totalQuantity != 0">
                        {{ totalQuantity }}</div>
                </div>
                <div class="cart-left-info">
                    <p>&#165;{{ totalPrice.toFixed(2) }}</p>
                    <p>另需配送费{{ business.deliveryPrice }}元</p>
                </div>
            </div>
            <div class="cart-right">
                <!-- 不够起送费 -->
                <div class="cart-right-item" v-show="totalPrice < Number(business.startPrice)"
                    style="background-color: #535356;cursor: default;">
                    &#165;{{ business.startPrice }}起送
                </div>
                <!-- 达到起送费 -->
                <div class="cart-right-item" @click="toOrder" v-show="totalPrice >= Number(business.startPrice)">
                    去结算
                </div>
            </div>
        </div>
    </div>
</template>
<script>
export default {
    name: 'BusinessInfo',
    data() {
        return {
            businessId: this.$route.query.businessId,
            orderOptions: [],
            selectedOrderId: null,
            orderLoading: false,
            orderErr: '',
            business: {},
            foodArr: [],
            user: null,
            showCommentModal: false,
            rating: 5,
            content: '',
            submitting: false,
            showCommentsModal: false,
            commentsLoading: false,
            comments: [],
            commentsLoaded: false,
            activeTab: 'comment',
            complaintContent: '',
            complaintSubmitting: false
        }
    },
    created() {
        this.$axios.get("/user")
            .then(response => {
                this.user = response.data;
            }).catch(error => {
                console.error(error);
            });
        //根据businessId查询商家信息
        this.$axios.get(`/businesses/public/${this.businessId}`)
            .then(response => {
                if (response.data.success && response.data.data) {
                    this.business = response.data.data;
                } else {
                    alert(response.data.message || '店铺不存在');
                }
            }).catch(error => {
                console.error(error);
            });

        //根据businessId查询所属食品信息
        this.$axios.get(`/foods/public/business/${this.businessId}`)
            .then(response => {
                if (response.data.success && response.data.data) {
                    this.foodArr = response.data.data.map(f => ({ ...f, quantity: 0 }));
                    if (this.user != null) {
                        this.listCart();
                    }
                } else {
                    this.foodArr = [];
                }
            }).catch(error => {
                console.error(error);
            });
    },
    methods: {
        getImg(img) {
            if (img && (img.startsWith('http://') || img.startsWith('https://'))) {
                return img;
            }
            try {
                return require('../assets/' + img);
            } catch (e) {
                return require('../assets/default.png');
            }
        },
        goBack() {
            this.$router.back();
        },
        listCart() {
            this.$axios.get('/carts/current-user')
                .then(response => {
                    if (response.data.success && response.data.data) {
                        let cartArr = response.data.data;
                        for (let i = 0; i < this.foodArr.length; i++) {
                            let temp = 0;
                            for (let cartItem of cartArr) {
                                if (cartItem.foodId === this.foodArr[i].id) {
                                    temp += cartItem.quantity;
                                }
                            }
                            this.foodArr[i].quantity = temp;
                        }
                    }
                }).catch(error => {
                    console.error(error);
                });
        },
        add(index) {
            //首先做登录验证
            if (this.user == null) {
                this.$router.push({
                    path: '/login'
                });
                return;
            }
            this.$axios.post('/carts', {
                food: this.foodArr[index], // 食品对象
                business: this.business,   // 商家对象
                customer: this.user,       // 用户对象
                quantity: 1
            }).then(response => {
                if (response.data.success) {
                    this.listCart();
                } else {
                    alert('添加购物项失败！');
                }
            }).catch(error => {
                console.error(error);
            });
        },
        minus(index) {
            if (!this.user) {
                this.$router.push({ path: '/login' });
                return;
            }
            this.$axios.get('/carts/current-user')
                .then(response => {
                    if (response.data.success && response.data.data) {
                        let cartArr = response.data.data;
                        // 找到 foodId 匹配且 id 最大的购物项
                        let target = null;
                        for (let cartItem of cartArr) {
                            if (cartItem.foodId === this.foodArr[index].id) {
                                if (!target || cartItem.id > target.id) {
                                    target = cartItem;
                                }
                            }
                        }
                        if (target) {
                            this.$axios.delete('/carts', {
                                data: { id: target.id }
                            }).then(res => {
                                if (res.data.success) {
                                    this.listCart();
                                } else {
                                    alert('删除购物项失败！');
                                }
                            }).catch(error => {
                                console.error(error);
                            });
                        } else {
                            alert('没有可删除的购物项！');
                        }
                    }
                }).catch(error => {
                    console.error(error);
                });
        },
        toOrder() {
            this.$router.push({
                path: '/orders',
                query: {
                    businessId: this.businessId
                }
            });
        },
        async goFeedback(mode = 'comment') {
            this.activeTab = mode
            await this.loadOrderOptions(mode)
            if (!this.orderOptions.length) {
                alert(mode === 'comment' ? '暂无可评价订单' : '暂无可投诉订单')
                return
            }
            this.showCommentModal = true
        },

        switchTab(mode) {
            if (this.activeTab === mode) return
            this.activeTab = mode
            this.selectedOrderId = null
            this.loadOrderOptions(mode)
        },
        async loadOrderOptions(mode = 'comment') {
            this.orderLoading = true
            this.orderOptions = []
            try {
                const { data } = await this.$axios.get('/orders/current-user')
                const arr = Array.isArray(data?.data) ? data.data : (Array.isArray(data) ? data : [])
                const candidate = arr.filter(o => String(o.businessId) === String(this.businessId))

                const results = await Promise.all(candidate.map(async (o) => {
                    try {
                        // 评价检查评论、投诉检查投诉
                        const url = mode === 'comment'
                            ? `/comments/order/${o.id}`
                            : `/complains/order/${o.id}`
                        const res = await this.$axios.get(url)
                        const exists = res?.data?.success === true && res?.data?.data
                        return exists ? null : o
                    } catch (err) {
                        const code = err?.response?.status || err?.response?.data?.code
                        const msg = err?.response?.data?.message || ''
                        const notFound = code === 404 || String(code).includes('NOT_FOUND') || /不存在|暂无(评论|投诉)/.test(msg)
                        return notFound ? o : null
                    }
                }))
                this.orderOptions = results.filter(Boolean)
            } catch (e) {
                console.error(e)
                this.orderErr = '加载订单失败'
            } finally {
                this.orderLoading = false
            }
        },
        closeCommentModal() {
            this.showCommentModal = false
            this.selectedOrderId = null
            this.content = ''
            this.complaintContent = ''
            this.rating = 5
        },
        async submitComment() {
            if (!this.selectedOrderId) { alert('请选择订单'); return }
            const ok = this.orderOptions.some(o => Number(o.id) === Number(this.selectedOrderId))
            if (!ok) { alert('该订单已评价或不可评价'); return }
            this.submitting = true
            try {
                await this.$axios.post('/comments', {
                    orderId: Number(this.selectedOrderId),
                    rating: this.rating,
                    content: this.content
                })
                alert('评价已提交，感谢反馈！')
                this.closeCommentModal()
            } catch (e) {
                console.error(e)
                alert('提交失败，请稍后重试')
            } finally {
                this.submitting = false
            }
        },
        async submitComplaint() {
            if (!this.selectedOrderId) { alert('请选择订单'); return }
            if (!this.complaintContent) { alert('请填写投诉内容'); return }
            // 二次校验：当前可选集合内才允许提交
            const ok = this.orderOptions.some(o => Number(o.id) === Number(this.selectedOrderId))
            if (!ok) { alert('该订单已投诉或不可投诉'); return }
            this.complaintSubmitting = true
            try {
                await this.$axios.post('/complains', {
                    orderId: Number(this.selectedOrderId),
                    businessId: Number(this.businessId),
                    content: this.complaintContent
                })
                alert('投诉已提交')
                this.closeCommentModal()
            } catch (e) {
                console.error(e)
                alert('提交失败，请稍后重试')
            } finally {
                this.complaintSubmitting = false
            }
        },
        openComments() {
            this.showCommentsModal = true
            if (!this.commentsLoaded) {
                this.loadBusinessComments()
            }
        },
        closeComments() {
            this.showCommentsModal = false
        },
        async loadBusinessComments() {
            this.commentsLoading = true
            try {
                // 按你的后端路由调整；若无分页可去掉 query
                const { data } = await this.$axios.get(`/comments/business/${this.businessId}`, {
                    params: { page: 1, size: 20 }
                })
                const list = Array.isArray(data?.data) ? data.data : (Array.isArray(data) ? data : [])
                this.comments = list
                this.commentsLoaded = true
                console.log(this.comments)
            } catch (e) {
                console.error(e)
                this.comments = []
            } finally {
                this.commentsLoading = false
            }
        },
        formatTime(ts) {
            if (!ts) return ''
            const d = new Date(ts)
            if (Number.isNaN(d.getTime())) return ts
            const pad = n => (n < 10 ? '0' + n : n)
            return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}`
        },
    },
    computed: {
        //食品总价格
        totalPrice() {
            let cents = 0;
            for (const item of this.foodArr) {
                const priceCents = Math.round((Number(item.foodPrice) || 0) * 100);
                const qty = Number(item.quantity) || 0;
                cents += priceCents * qty;
            }
            return cents / 100;
        },
        //食品总数量
        totalQuantity() {
            return this.foodArr.reduce((n, it) => n + (Number(it.quantity) || 0), 0);
        },
        //结算总价格
        totalSettle() {
            return parseFloat(this.totalPrice) + this.business.deliveryPrice;
        }
    }
}
</script>
<style scoped>
/****************** 总容器 ******************/
.wrapper {
    width: 100%;
    height: 100%;
    padding-bottom: 0;
}

/****************** header部分 ******************/
.wrapper header {
    width: 100%;
    height: 12vw;
    background-color: #0097FF;
    color: #fff;
    font-size: 4.8vw;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.back-btn {
    position: absolute;
    left: 3vw;
    top: 50%;
    transform: translateY(-50%);
    font-size: 4vw;
    cursor: pointer;
    color: #fff;
    z-index: 1001;
    padding: 0 1vw;
    user-select: none;
}

.header-actions {
    position: absolute;
    right: 3vw;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 3vw;
}

.header-action-btn {
    border: none;
    background: transparent;
    color: #fff;
    font-size: 5vw;
    /* 和返回箭头大小接近 */
    cursor: pointer;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-bottom: 1px solid #eee;
    font-size: 16px;
}

.tabs {
    display: flex;
    gap: 8px;
}

.tabs button {
    border: 1px solid #eee;
    background: #f7f7f7;
    color: #333;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
}

.tabs button.active {
    background: #0097FF;
    border-color: #0097FF;
    color: #fff;
}

/****************** 商家logo部分 ******************/
.wrapper .business-logo {
    width: 100%;
    height: 35vw;
    /*使用上外边距避开header部分*/
    margin-top: 12vw;
    display: flex;
    justify-content: center;
    align-items: center;
}

.wrapper .business-logo img {
    width: 40vw;
    height: 30vw;
    border-radius: 5px;
}

/****************** 商家信息部分 ******************/
.wrapper .business-info {
    width: 100%;
    height: 20vw;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.wrapper .business-info h1 {
    font-size: 5vw;
}

.wrapper .business-info p {
    font-size: 3vw;
    color: #666;
    margin-top: 1vw;
}

/****************** 食品列表部分 ******************/
.wrapper .food {
    width: 100%;
    /*使用下外边距避开footer部分*/
    padding-bottom: 22vw;
    margin-bottom: 0;
}

.wrapper .food li {
    width: 100%;
    box-sizing: border-box;
    padding: 2.5vw;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.wrapper .food li .food-left {
    display: flex;
    align-items: center;
}

.wrapper .food li .food-left img {
    width: 20vw;
    height: 20vw;
}

.wrapper .food li .food-left .food-left-info {
    margin-left: 3vw;
}

.wrapper .food li .food-left .food-left-info h3 {
    font-size: 3.8vw;
    color: #555;
}

.wrapper .food li .food-left .food-left-info p {
    font-size: 3vw;
    color: #888;
    margin-top: 2vw;
}

.wrapper .food li .food-right {
    min-width: 12vw;
    /* 可选，保证不太窄 */
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3vw;
}

.wrapper .food li .food-right .fa-minus-circle {
    font-size: 5.5vw;
    color: #999;
    cursor: pointer;
}

.wrapper .food li .food-right p {
    font-size: 3.6vw;
    color: #333;
}

.wrapper .food li .food-right .fa-plus-circle {
    font-size: 5.5vw;
    color: #0097EF;
    cursor: pointer;
}

/****************** 购物车部分 ******************/
.wrapper .cart {
    width: 100%;
    height: 18vw;
    position: fixed;
    left: 0;
    bottom: 0;
    display: flex;
}

.wrapper .cart .cart-left {
    flex: 2;
    background-color: #505051;
    display: flex;
}

.wrapper .cart .cart-left .cart-left-icon {
    width: 16vw;
    height: 16vw;
    box-sizing: border-box;
    border: solid 1.6vw #444;
    border-radius: 8vw;
    background-color: #3190E8;
    font-size: 7vw;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: -0;
    margin-left: 3vw;
    position: relative;
}

.wrapper .cart .cart-left .cart-left-icon-quantity {
    width: 5vw;
    height: 5vw;
    border-radius: 2.5vw;
    background-color: red;
    color: #fff;
    font-size: 3.6vw;
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    right: -1.5vw;
    top: -1.5vw;
}

.wrapper .cart .cart-left .cart-left-info p:first-child {
    font-size: 4.5vw;
    color: #fff;
    margin-top: 1vw;
}

.wrapper .cart .cart-left .cart-left-info p:last-child {
    font-size: 2.8vw;
    color: #AAA;
}

.wrapper .cart .cart-right {
    flex: 1;
}

/*达到起送费时的样式*/
.wrapper .cart .cart-right .cart-right-item {
    width: 100%;
    height: 100%;
    background-color: #38CA73;
    color: #fff;
    font-size: 4.5vw;
    font-weight: 700;
    user-select: none;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}

.comment-entry {
    width: 100%;
    display: flex;
    justify-content: center;
    margin: 2vw 0 4vw;
}

.btn-primary {
    padding: 2.5vw 5vw;
    background: #0097FF;
    color: #fff;
    border: 0;
    border-radius: 6px;
    font-size: 3.6vw;
    cursor: pointer;
}

.fab-comment {
    position: fixed;
    right: 4vw;
    bottom: 24vw;
    /* 高于底部购物车 */
    width: 12vw;
    height: 12vw;
    border-radius: 50%;
    background: #0097FF;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 16px rgba(0, 0, 0, .2);
    z-index: 1200;
    cursor: pointer;
}

.fab-comment .fa {
    font-size: 5vw;
}

.modal-mask {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-panel {
    width: 88vw;
    max-width: 520px;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 24px rgba(0, 0, 0, .25);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-bottom: 1px solid #eee;
    font-size: 16px;
}

.modal-close {
    border: 0;
    background: transparent;
    font-size: 20px;
    cursor: pointer;
}

.modal-body {
    padding: 12px 14px;
}

.stars {
    font-size: 22px;
    color: #ddd;
    user-select: none;
}

.star {
    cursor: pointer;
    margin-right: 6px;
}

.star.on {
    color: #FFB800;
}

.score {
    margin-left: 8px;
    font-size: 14px;
    color: #666;
}

textarea {
    width: 100%;
    margin-top: 10px;
    padding: 8px 10px;
    border: 1px solid #eee;
    border-radius: 8px;
    resize: vertical;
    min-height: 80px;
    font-size: 14px;
}

.modal-body .btn-primary {
    width: 100%;
    margin-top: 12px;
    padding: 10px 0;
    border-radius: 8px;
}

.fab-view-comments {
    position: fixed;
    right: 4vw;
    bottom: 38vw;
    /* 比写评论按钮高一点 */
    width: 12vw;
    height: 12vw;
    border-radius: 50%;
    background: #ff9f43;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 16px rgba(0, 0, 0, .2);
    z-index: 1200;
    cursor: pointer;
}

.fab-view-comments .fa {
    font-size: 5vw;
}

.comment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comment-list li {
    padding: 10px 0;
    border-bottom: 1px solid #f2f2f2;
}

.cl-head {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cl-head .name {
    font-weight: 600;
    color: #333;
}

.cl-head .time {
    margin-left: auto;
    color: #999;
    font-size: 12px;
}

.stars-mini .star {
    font-size: 14px;
    color: #ddd;
}

.stars-mini .star.on {
    color: #FFB800;
}

.cl-content {
    margin-top: 6px;
    color: #555;
    line-height: 1.5;
}
</style>